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Finding the Fourth Proportional to 21,598.68, 32,400.77 and 8,449.37

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Solution

The fourth proportional to 21,598.68, 32,400.77 and 8,449.37 is: 12,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,598.68 : 32,400.77 = 8,449.37 : x
  2. Step 2: Convert to fraction form
    21,598.68/32,400.77 = 8,449.37/x
  3. Step 3: Cross multiply
    21,598.68x = 32,400.77 × 8,449.37
  4. Step 4: Simplify right side
    21,598.68x = 273,765,889.76
  5. Step 5: Solve for x
    x = 273,765,889.76/21,598.68
  6. Step 6: Final answer
    x = 12,675.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.